Sewer-block



J. E. ULM.

SEWER BLOCK.

Patented May 4, 1920.

2 SHEETS-SHEET l.

w Vvr A 0-- Wi/imam J. E. ULM.

SEWER BLOCK.

APPLICATION FILED NOV. 24, 1917.

Patented May 4, 1920.

2 SHEETS-SHEET 2. i

JOHN E. ULIVL' BARBERTON, OHIO.

'- SEWER-BLOCK.

Specification of 4Letters Patent.

Patented May 4519,20.

Appiicatin sied :november 24, 1917. ,serial Naeoaeis.

To all ywhom t may concern.'

Be it known that I, Jol-IN E.y ULM, a citizen of the United States,residing at Barberton, in the county of Summit and State of Ohio, haveinvented a new and useful Sewer- Block, of which the following is aspecification. y

The subject of this invention isa tile intended for use -in constructingsewers, arches, silos and other structures.

The main object of the invention is to provide an interlocking tile. l

Another object is to provide overlapping blocks.

A still further object is to .provide a simple, durable and efficienttile.

lVith the foregoing and other objectsin view which will appear-as the-description proceeds, theinvention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and clainied, it being understood that changes in the `preciseembodiment of the invention herein disclosed, can be made within thescope of what is claimed, without departing from the spirit of theinvention.

practical embodiment of the invention is shown in the accompanyingdrawings, wherein:

Figure 1 is a cross section of a 'fragment oi? a cylindrical structureconstructed of the tile which is the subject of this invention;

Fig. 2 is a longitudinal section taken on the line 2 2 of Fig. 1;

Fig. 3 is a perspective view of the outer tile section;

Fig. 4 is a perspective view of the inner tile section.

Referring to the drawings by numerals of referente The inventionconsists of the coperating, interlockingouter and inner tile blocks 1and respectively.

The outer tile block 1 is composed of an outer curved wall 3 and aninner concentric wall 4f. These walls are joined along theirlongitudinal edges by a transversely concave side 5 and an opposed,transverselj7 convex side 6.

A longitudinallydisposed partition wall 7, curved to correspond with thecurve of the inner and outer walls 4 and 3, respectively, is positionedwithin each block 1 and is joined to the outer wall 3 byfa radiallydisposed partition `wall 8.

The inner wall et is divided longitudinally and the -edges defining the.division `are joined tothepartition wall 7 by theoutwardly convergingwalls 9. kEach wall 9 is formed with. a longitudinal dovetail groove 10.i

The face of the inner walll-isformed with a series of ribs,preferably ashere shown in the form of dovetail tongues 11.

The inner block or tile 2 consists of an inner, curved, flongitudinalwall' 12, concentric with an outer wallf13, which is provided. withlongitudinallyextending dovetail tongues 111. The walls 12 and13 areconnected bythe division-wall liwhich` eX- tends longitudinally ofthebloclrandserves to strengthen the.l same.

F rom each longitudinalv edge `of the block 2 rises a hollow rib.indicated generallyat 16. The outerside face of. each rib islintef{ralziwith` the-side rwallofthe block 2y and one face or side 17 isconcave while the opposed side 18 is convex. The inner face ot each rib1G is formed with a dovetail groove 19, and is inclined to correspond tothe inclination of the walls 9.

One end of each block 1 is convex, as indicated at 20, to provide atransverse tongue which is adapted to enter the groove 21 formed by theconcave edge of the opposed end of an adjacent block.

A similarformation may be had on the inner blocks 2 on which one end isconvex, as at 22, while the opposite end is concave, as indicated at 23.

In practice the tile is used as follows:

The inner blocks are placed in position with the tongues 22 entering thegrooves or concavities 23. The side tongues 18 also enter grooves 17 andcement 24 may be interposed between these latter tongues and grooves tobind the blocks in place.

The outer blocks 1 are placed in position on the inner blocks with thedovetail ribs 11 positioned between the similar ribs 14 of the innerblocks 2. The ribs 16 of the inner blocks fall within the grooves orchannels defined by the walls 9 of the outer blocks. Cement is placedbetweeny these blocks and, because of the ribs 11 and 14 and the grooves10 and 19 serves to bind the blocks firmly together.

The ends of these outer blocks are held by the tongues 2() entering thegrooves Q1, while the sides are held by the tongues entering the grooves5. Cement is placed between the tongues and grooves 5 to bind the sidesmore firmly in place.

Having thus described the invention, what is claimed as new and soughtby Letters Patent, is:

1. A device of the class described embodying outer blocks having theirends respectively convexed and concaved for engagement with thecorresponding elements of a like block, and comprising concentric outer,intermediate and inner walls7 the intermediate wall extending entirelyacross the block, the inner wall comprising spaced parts joined to theintermediate wall by outwardly extending members todeiine a recess inthe outer block, the outer and intermediate walls being connected by apartition disposed approximately midway between the sides of' therecess; and inner blocks extending across the joints afforded by theconvexed and concaved ends of the outer blocks, each inner blockincluding concentric inner and outer walls joined by a partitiondisposed approximately opposite to said joint, the inner blocks beingprovided at their ends with hollow outwardly-extending projections, theprojections on adjoining blocks being received in pairs in the recessesof the outer blocks, the ends of the inner blocks, including theextensions, being respectively convexed and concaved for' cooperationwith the corresponding elements of a like block.

2. A device o the class described embodying outer blocks having theirends respectively convexed and concaved for engagement with thecorresponding elements of a like block, and comprising concentric outer,intermediate and inner walls, the intermediate wall extending entirelyacross the block, the inner wall comprising spaced parts joined to theintermediate wall by outwardly extending members to define a recess inthe outer block, the outer and intermediate walls being connected by apartition disposed approximately midway between the sides of the recess;and inner blocks extending across the joints afforded by the convexedand concaved endsV of the outer blocks, each inner block includingconcentric inner and outer walls joined by a partition disposedapproximately opposite to said joint, the inner blocks being provideda't their ends'with hollow outwardlyextending projections, theprojections on adjoining blocks being received in pairs in the recessesof the outer blocks.

In testimony that I claim the foregoing as my own, I have hereto aifixedmy signature in the presence of' two witnesses.

i yJOHN E. ULM.

Witnesses:

W. A. MoR'roN, RAY E. MoR'roN.

